Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

Auto Flash & Test on #PineDio Stack #BL604 @PINE64 ... Yep it works! 🎉 ... Up Next: Robot Finger 🤖 👉

https://github.com/lupyuen/remote-bl602#pinedio-stack-bl604

GitHub Résumé Builder (2016) 🥲

https://github.com/resume/resume.github.com

#PineDio Stack #BL604 and PineCone BL602 ... All boxed up with SBC for Auto Flash & Test 🙏

https://github.com/lupyuen/remote-bl602#pinedio-stack-bl604

Auto Flash & Test on #PineDio Stack #BL604: GPIO 8 is already connected to SBC ... But GPIO 8 Jumper MUST be set to Low ... Otherwise the LoRaWAN Auto-Test goes wonky and fails 🤔

https://github.com/lupyuen/remote-bl602#pinedio-stack-bl604

Connect these pins on #PineDio Stack #BL604 to our SBC for Auto Flash & Test: 1️⃣ GPIO 8 2️⃣ Reset 3️⃣ Ground

https://github.com/lupyuen/remote-bl602#pinedio-stack-bl604

Wiring up #PineDio Stack #BL604 @PINE64 and PineCone BL602 ... To SBC for Auto Flash & Test 🤔

https://lupyuen.github.io/articles/auto

Our #BL604 GPIO Expander for Apache #NuttX RTOS ... Works great with #LoRaWAN! 🎉

https://lupyuen.github.io/articles/expander?21#test-lorawan

Here's how we test our #BL604 GPIO Expander ... With #PineDio Stack's Touch Panel on Apache #NuttX RTOS

https://lupyuen.github.io/articles/expander?20#test-gpio-expander

Ideas for validating the #BL602 Pin Functions ... So that #NuttX Pin Definitions will be goof-proof 🤔

https://lupyuen.github.io/articles/expander?19#appendix-validate-pin-function

#BL602 is incredibly flexible for selecting GPIO Pin Functions ... But might be error-prone 🤔

https://lupyuen.github.io/articles/expander?17#pin-functions

Our GPIO Expander validates the #BL604 GPIO Pin Definitions at #NuttX Startup ... No more reusing pins by mistake! 👍

https://lupyuen.github.io/articles/expander?16#validate-gpio

Here's how we load our #BL604 GPIO Expander at #NuttX Startup

https://lupyuen.github.io/articles/expander?15#load-gpio-expander

GPIO Command works great for testing #BL602 GPIO Interrupts in the #NuttX Shell

https://lupyuen.github.io/articles/expander?11#gpio-command

Here's how we call our #BL604 GPIO Expander ... To attach an Interrupt Handler in Apache #NuttX RTOS

https://lupyuen.github.io/articles/expander?10#attach-interrupt-handler

#BL602 GPIO Interrupts are multiplexed to One Single GPIO IRQ ... Which is a little harder to handle on Apache #NuttX RTOS

https://lupyuen.github.io/articles/expander?9#bl602-evb-interrupt

Handling a #BL602 GPIO Interrupt on Apache #NuttX RTOS can get tricky ... Here's how we fixed it

https://lupyuen.github.io/articles/expander?8#gpio-interrupt

Here are the #NuttX GPIO Operations supported by our #BL604 GPIO Expander

https://lupyuen.github.io/articles/expander?7#gpio-operations

Apache #NuttX RTOS lets us create I/O Expanders that will manage many GPIOs ... Let's create one for #PineDio Stack #BL604

https://lupyuen.github.io/articles/expander?6#gpio-expander

Here's how we'll fix the #BL604 GPIOs on Apache #NuttX RTOS ... With our new GPIO Expander

https://lupyuen.github.io/articles/expander?5#overcome-the-limitations

#BL602 EVB manages GPIO Pins in an awkward way on Apache #NuttX RTOS 🤔

https://lupyuen.github.io/articles/expander?4#pin-definitions